diff --git a/llvm/lib/Target/TargetMachine.cpp b/llvm/lib/Target/TargetMachine.cpp
--- a/llvm/lib/Target/TargetMachine.cpp
+++ b/llvm/lib/Target/TargetMachine.cpp
@@ -149,12 +149,7 @@
     return GV->isStrongDefinitionForLinker();
   }
 
-  // Due to the AIX linkage model, any global with default visibility is
-  // considered non-local.
-  if (TT.isOSBinFormatXCOFF())
-    return false;
-
-  assert(TT.isOSBinFormatELF() || TT.isOSBinFormatWasm());
+  assert(TT.isOSBinFormatELF() || TT.isOSBinFormatWasm() || TT.isOSBinFormatXCOFF());
   assert(RM != Reloc::DynamicNoPIC);
   return false;
 }